From 9b639bee650306c4b667530c76849720aa46411a Mon Sep 17 00:00:00 2001
From: Moody Salem <moody.salem@gmail.com>
Date: Fri, 30 Apr 2021 21:23:16 -0500
Subject: [PATCH] invalidate signature data for old nonce

---
 src/hooks/useERC20Permit.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/hooks/useERC20Permit.ts b/src/hooks/useERC20Permit.ts
index d8dacfecea..4c543aa1ba 100644
--- a/src/hooks/useERC20Permit.ts
+++ b/src/hooks/useERC20Permit.ts
@@ -169,6 +169,7 @@ export function useERC20Permit(
       signatureData.owner === account &&
       signatureData.deadline >= transactionDeadline.toNumber() &&
       signatureData.tokenAddress === tokenAddress &&
+      signatureData.nonce === nonceNumber &&
       signatureData.spender === spender &&
       ('allowed' in signatureData || JSBI.equal(JSBI.BigInt(signatureData.amount), currencyAmount.raw))